Minimum Variance Distortionless signal Response (MVDR) beamforming can be used as a wavenumber spectrum (bearing) estimation, whose precision or resolution is deter mined primarily by signal-to-noise ratio. This paper...Minimum Variance Distortionless signal Response (MVDR) beamforming can be used as a wavenumber spectrum (bearing) estimation, whose precision or resolution is deter mined primarily by signal-to-noise ratio. This paper presents a method for improving MVDR beamforming bearing resolution by using an enhancement factor in its weight vector design for emulating a high signal-to-noise ratio condition which is known to be a principal factor in res olution improvement. This method can providc improved rcsolution not at the expense of sig nal-to noise plus interference ratio gain. Some of computer simulation results are also given.展开更多
文摘Minimum Variance Distortionless signal Response (MVDR) beamforming can be used as a wavenumber spectrum (bearing) estimation, whose precision or resolution is deter mined primarily by signal-to-noise ratio. This paper presents a method for improving MVDR beamforming bearing resolution by using an enhancement factor in its weight vector design for emulating a high signal-to-noise ratio condition which is known to be a principal factor in res olution improvement. This method can providc improved rcsolution not at the expense of sig nal-to noise plus interference ratio gain. Some of computer simulation results are also given.
